[GHC] #10249: GHCi leaky abstraction: error message mentions `ghciStepIO`

[GHC]

#10249: GHCi leaky abstraction: error message mentions `ghciStepIO`
-------------------------------------+-------------------------------------
        Reporter:  Iceland_jack      |                Owner:  thomie
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:  8.2.1
       Component:  GHCi              |              Version:  7.10.1
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Incorrect         |            Test Case:
  warning at compile-time            |  ghci/scripts/T10249
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D1527,
       Wiki Page:                    |  Phab:D1528
-------------------------------------+-------------------------------------
Changes (by bgamari):

 * status:  new => closed
 * resolution:   => fixed


Comment:

 This appears to be fixed however there is no test by the name `T10249`
 (although `T10248` is quite related). I've gone ahead and added the test.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10249#comment:9>
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